package com.zengqingfa.juc.n4;

/**
 * @author zengqingfa
 * @className UserServiceImpl
 * @description
 * @create 2021/6/10 23:34
 */
public class UserServiceImpl implements UserService {

    // 记录调用次数
    private int count = 0;

    @Override
    public void update(String s) {
        //....
        count++;
    }
}